我到处寻找这个问题的解决方案,我能找到的唯一答案似乎是“不要把一个ListView放入一个ScrollView”。不过,我还没有看到任何真正的解释。我能找到的唯一原因似乎是谷歌认为你不应该这么做。我知道,所以我做了。

问题是,如何将ListView放到ScrollView中而不缩到最小高度?


当前回答

感谢Vinay的代码,这是我的代码,当你不能在滚动视图中有一个列表视图时,你需要这样的东西

LayoutInflater li = LayoutInflater.from(this);

                RelativeLayout parent = (RelativeLayout) this.findViewById(R.id.relativeLayoutCliente);

                int recent = 0;

                for(Contatto contatto : contatti)
                {
                    View inflated_layout = li.inflate(R.layout.header_listview_contatti, layout, false);


                    inflated_layout.setId(contatto.getId());
                    ((TextView)inflated_layout.findViewById(R.id.textViewDescrizione)).setText(contatto.getDescrizione());
                    ((TextView)inflated_layout.findViewById(R.id.textViewIndirizzo)).setText(contatto.getIndirizzo());
                    ((TextView)inflated_layout.findViewById(R.id.textViewTelefono)).setText(contatto.getTelefono());
                    ((TextView)inflated_layout.findViewById(R.id.textViewMobile)).setText(contatto.getMobile());
                    ((TextView)inflated_layout.findViewById(R.id.textViewFax)).setText(contatto.getFax());
                    ((TextView)inflated_layout.findViewById(R.id.textViewEmail)).setText(contatto.getEmail());



                    RelativeLayout.LayoutParams relativeParams = new RelativeLayout.LayoutParams(LayoutParams.FILL_PARENT, LayoutParams.WRAP_CONTENT);

                    if (recent == 0)
                    {
                        relativeParams.addRule(RelativeLayout.BELOW, R.id.headerListViewContatti);
                    }
                    else
                    {
                        relativeParams.addRule(RelativeLayout.BELOW, recent);
                    }
                    recent = inflated_layout.getId();

                    inflated_layout.setLayoutParams(relativeParams);
                    //inflated_layout.setLayoutParams( new RelativeLayout.LayoutParams(source));

                    parent.addView(inflated_layout);
                }

relativeLayout保持在ScrollView中,所以它都是可滚动的:)

其他回答

它有一个内置的设置。在ScrollView中:

android:fillViewport="true"

在Java中,

mScrollView.setFillViewport(true);

罗曼·盖伊在这里有深入的解释:http://www.curious-creature.org/2010/08/15/scrollviews-handy-trick/

以前这是不可能的。但是随着新的Appcompat库和Design库的发布,这可以实现。

你只需要使用NestedScrollView https://developer.android.com/reference/android/support/v4/widget/NestedScrollView.html

我不知道它将与Listview工作与否,但与RecyclerView工作。

代码片段:

<android.support.v4.widget.NestedScrollView 
android:layout_width="match_parent"
android:layout_height="match_parent">

<android.support.v7.widget.RecyclerView
    android:layout_width="match_parent"
    android:layout_height="wrap_content" />

</android.support.v4.widget.NestedScrollView>

以下是对@djunod的回答的小修改,我需要使它完美地工作:

public static void setListViewHeightBasedOnChildren(ListView listView)
{
    ListAdapter listAdapter = listView.getAdapter();
    if(listAdapter == null) return;
    if(listAdapter.getCount() <= 1) return;

    int desiredWidth = MeasureSpec.makeMeasureSpec(listView.getWidth(), MeasureSpec.AT_MOST);
    int totalHeight = 0;
    View view = null;
    for(int i = 0; i < listAdapter.getCount(); i++)
    {
        view = listAdapter.getView(i, view, listView);
        view.measure(desiredWidth, MeasureSpec.UNSPECIFIED);
        totalHeight += view.getMeasuredHeight();
    }
    ViewGroup.LayoutParams params = listView.getLayoutParams();
    params.height = totalHeight + (listView.getDividerHeight() * (listAdapter.getCount() - 1));
    listView.setLayoutParams(params);
    listView.requestLayout();
}

你创建了一个自定义的ListView,它是不可滚动的

public class NonScrollListView extends ListView {

    public NonScrollListView(Context context) {
        super(context);
    }
    public NonScrollListView(Context context, AttributeSet attrs) {
        super(context, attrs);
    }
    public NonScrollListView(Context context, AttributeSet attrs, int defStyle) {
        super(context, attrs, defStyle);
    }
    @Override
    public void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
            int heightMeasureSpec_custom = MeasureSpec.makeMeasureSpec(
                    Integer.MAX_VALUE >> 2, MeasureSpec.AT_MOST);
            super.onMeasure(widthMeasureSpec, heightMeasureSpec_custom);
            ViewGroup.LayoutParams params = getLayoutParams();
            params.height = getMeasuredHeight();    
    }
}

在布局资源文件中

<RelativeLayout
    android:layout_width="match_parent"
    android:layout_height="wrap_content" >

    <!-- com.Example Changed with your Package name -->

    <com.Example.NonScrollListView
        android:id="@+id/lv_nonscroll_list"
        android:layout_width="match_parent"
        android:layout_height="wrap_content" >
    </com.Example.NonScrollListView>

    <RelativeLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_below="@+id/lv_nonscroll_list" >

        <!-- Your another layout in scroll view -->

    </RelativeLayout>
</RelativeLayout>

在Java文件中

创建一个customListview对象而不是ListView,如下所示: NonScrollListView non_scroll_list = (NonScrollListView) findViewById(R.id.lv_nonscroll_list);

不是把listview放在Scrollview里面,而是把其余的内容放在listview和Scrollview的开头之间,作为一个单独的视图,并将该视图设置为listview的头部。所以你最终将只有列表视图负责滚动。